Carol Kirkwood was taken to hospital after being knocked off her bike in a car accident.
The BBC weather presenter, who has been absent from the programme, told her online followers that she was injured in a road collision with a car while cycling.
She revealed all in a tweet, Carol, 57, explaining that this was the reason she had not been at work, and thanked emergency service staff who attended the scene, as well as hospital staff.
Carol, 57, tweeted: "Been off following an accident.
"Got knocked off my bike by a car and got injured.
"Biggest thanks ever to the Police (Chris and Faye), the Ambulance Crew (Miranda and Stewart) who tended to me and took me to hospital.
"And especially Peter Foskett-Tharby at Wexham Park Hospital".
She was inundated by well wishes from her followers, and thanked them when she returned to BBC Breakfast today.
"Tell us a bit about what happened," host Louise Minchin asked.
Carol - who appeared on Strictly Come Dancing in 2015 - replied: "Thank you to everybody for your concern.
"I was out on my bike and got knocked off it by a car that drove into me. A pure accident of course, and I got injured.
"This is a great opportunity to say thank you to three cyclists that helped me immediately after the incident and also the police.
“Thames Valley police, that was Chris and Faye, and the ambulance who tended to me and then took me to hospital - and that was Miranda and Stewart.
“And at Wexham Park hospital, this man is a genius, his name is Peter Foskett-Tharby. I can’t thank him enough. I am so grateful to you all.”